[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 19.261257] random: sshd: uninitialized urandom read (32 bytes read) [?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 23.378600] random: sshd: uninitialized urandom read (32 bytes read) [ 23.742664] random: sshd: uninitialized urandom read (32 bytes read) [ 24.541735] random: sshd: uninitialized urandom read (32 bytes read) [ 24.692246] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.10.20' (ECDSA) to the list of known hosts. [ 30.229334] random: sshd: uninitialized urandom read (32 bytes read) 2018/06/19 09:39:20 parsed 1 programs [ 31.731064] random: cc1: uninitialized urandom read (8 bytes read) 2018/06/19 09:39:22 executed programs: 0 [ 32.814736] IPVS: ftp: loaded support on port[0] = 21 [ 32.997935] bridge0: port 1(bridge_slave_0) entered blocking state [ 33.004420] bridge0: port 1(bridge_slave_0) entered disabled state [ 33.011967] device bridge_slave_0 entered promiscuous mode [ 33.028990] bridge0: port 2(bridge_slave_1) entered blocking state [ 33.035369] bridge0: port 2(bridge_slave_1) entered disabled state [ 33.042536] device bridge_slave_1 entered promiscuous mode [ 33.058717] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 33.074588] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 33.113393] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 33.130242] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 33.190432] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 33.197718] team0: Port device team_slave_0 added [ 33.211875] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 33.218942] team0: Port device team_slave_1 added [ 33.233811] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 33.249963] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 33.266197] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 33.282582] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 33.394098] bridge0: port 2(bridge_slave_1) entered blocking state [ 33.400549] bridge0: port 2(bridge_slave_1) entered forwarding state [ 33.407445] bridge0: port 1(bridge_slave_0) entered blocking state [ 33.413810] bridge0: port 1(bridge_slave_0) entered forwarding state [ 33.810953] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 33.817082] 8021q: adding VLAN 0 to HW filter on device bond0 [ 33.858298] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 33.898991] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 33.908395] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 33.942909] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 33.949055] 8021q: adding VLAN 0 to HW filter on device team0 [ 33.955826] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 34.190197] WARNING: CPU: 1 PID: 4808 at include/net/sock.h:644 smc_unhash_sk+0x357/0x4b0 [ 34.198611] Kernel panic - not syncing: panic_on_warn set ... [ 34.198611] [ 34.205981] CPU: 1 PID: 4808 Comm: syz-executor0 Not tainted 4.18.0-rc1+ #12 [ 34.213156] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.222495] Call Trace: [ 34.225076] dump_stack+0x1c9/0x2b4 [ 34.228700] ? dump_stack_print_info.cold.2+0x52/0x52 [ 34.233883] panic+0x238/0x4e7 [ 34.237063] ? add_taint.cold.5+0x16/0x16 [ 34.241201] ? __warn.cold.8+0x148/0x1ba [ 34.245246] ? __warn.cold.8+0x117/0x1ba [ 34.249294] ? smc_unhash_sk+0x357/0x4b0 [ 34.253339] __warn.cold.8+0x163/0x1ba [ 34.257218] ? smc_unhash_sk+0x357/0x4b0 [ 34.261285] report_bug+0x252/0x2d0 [ 34.264897] do_error_trap+0x1fc/0x4d0 [ 34.268780] ? math_error+0x3f0/0x3f0 [ 34.272570] ? print_usage_bug+0xc0/0xc0 [ 34.276617] ? lock_acquire+0x1e4/0x540 [ 34.280592] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 34.286213] do_invalid_op+0x1b/0x20 [ 34.289912] invalid_op+0x14/0x20 [ 34.293357] RIP: 0010:smc_unhash_sk+0x357/0x4b0 [ 34.298012] Code: 48 8b 45 d0 65 48 33 04 25 28 00 00 00 0f 85 88 00 00 00 48 81 c4 c0 00 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 69 d9 1b fa <0f> 0b e9 47 ff ff ff 4c 89 ff 48 89 85 28 ff ff ff e8 43 a4 59 fa [ 34.317216] RSP: 0018:ffff8801aaaff430 EFLAGS: 00010293 [ 34.322573] RAX: ffff8801aa702200 RBX: ffff8801d687f800 RCX: ffffffff875fd076 [ 34.329836] RDX: 0000000000000000 RSI: ffffffff875fd137 RDI: 0000000000000005 [ 34.337094] RBP: ffff8801aaaff518 R08: ffff8801aa702200 R09: ffffed003ad0ff10 [ 34.344357] R10: ffffed003ad0ff10 R11: ffff8801d687f883 R12: 1ffff1003555fe8a [ 34.351620] R13: ffff8801aaaff4f0 R14: ffffffff89934600 R15: ffff8801d687f880 [ 34.358886] ? smc_unhash_sk+0x296/0x4b0 [ 34.362937] ? smc_unhash_sk+0x357/0x4b0 [ 34.366999] ? smc_rx_data_available+0x120/0x120 [ 34.371759] ? release_sock+0x1ec/0x2c0 [ 34.375722] ? __local_bh_enable_ip+0x161/0x230 [ 34.380375] ? __release_sock+0x3a0/0x3a0 [ 34.384519] ? smc_release+0x269/0x610 [ 34.388413] ? trace_hardirqs_on+0xd/0x10 [ 34.392555] ? __local_bh_enable_ip+0x161/0x230 [ 34.397228] smc_release+0x36e/0x610 [ 34.400928] __sock_release+0xd7/0x260 [ 34.404798] ? __sock_release+0x260/0x260 [ 34.408932] sock_close+0x19/0x20 [ 34.412374] __fput+0x35b/0x8b0 [ 34.415639] ? fput+0x1a0/0x1a0 [ 34.418908] ? _raw_spin_unlock_irq+0x27/0x70 [ 34.423390] ____fput+0x15/0x20 [ 34.426653] task_work_run+0x1ec/0x2a0 [ 34.430527] ? task_work_cancel+0x250/0x250 [ 34.434833] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 34.440364] ? switch_task_namespaces+0xa2/0xd0 [ 34.445028] do_exit+0x1b08/0x2750 [ 34.448569] ? mm_update_next_owner+0x9a0/0x9a0 [ 34.453236] ? lock_pin_lock+0x350/0x350 [ 34.457292] ? do_futex+0x249/0x27d0 [ 34.460989] ? rcu_report_qs_rnp+0x7a0/0x7a0 [ 34.465387] ? exit_robust_list+0x290/0x290 [ 34.469699] ? check_usage_backwards+0x164/0x3d0 [ 34.474456] ? __kernel_text_address+0xd/0x40 [ 34.478951] ? print_shortest_lock_dependencies+0x80/0x80 [ 34.484476] ? graph_lock+0x170/0x170 [ 34.488270] ? graph_lock+0x170/0x170 [ 34.492069] ? find_held_lock+0x36/0x1c0 [ 34.496134] ? lock_downgrade+0x8f0/0x8f0 [ 34.500274] ? lock_downgrade+0x8f0/0x8f0 [ 34.504417] ? kasan_check_read+0x11/0x20 [ 34.508549] ? do_raw_spin_unlock+0xa7/0x2f0 [ 34.512941] ? __local_bh_enable_ip+0x161/0x230 [ 34.517605] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 34.522607] ? release_sock+0x1ec/0x2c0 [ 34.526579] ? trace_hardirqs_on+0xd/0x10 [ 34.530713] ? __local_bh_enable_ip+0x161/0x230 [ 34.535366] ? _raw_spin_unlock_bh+0x30/0x40 [ 34.539757] ? release_sock+0x1ec/0x2c0 [ 34.543721] ? __release_sock+0x3a0/0x3a0 [ 34.547869] ? __local_bh_enable_ip+0x161/0x230 [ 34.552529] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 34.558056] ? fput+0x130/0x1a0 [ 34.561321] ? __ia32_compat_sys_futex+0x3e6/0x5f0 [ 34.566236] do_group_exit+0x177/0x440 [ 34.570129] ? __x32_compat_sys_get_robust_list+0x430/0x430 [ 34.575825] ? __ia32_sys_exit+0x50/0x50 [ 34.579871] ? do_fast_syscall_32+0x150/0xfb2 [ 34.584355] __ia32_sys_exit_group+0x3e/0x50 [ 34.588751] do_fast_syscall_32+0x34d/0xfb2 [ 34.593069] ? do_int80_syscall_32+0x890/0x890 [ 34.597654] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 34.602412] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 34.607943] ? syscall_return_slowpath+0x31d/0x5e0 [ 34.612869] ? sysret32_from_system_call+0x5/0x46 [ 34.617700] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 34.622528] entry_SYSENTER_compat+0x70/0x7f [ 34.626917] RIP: 0023:0xf7f26cb9 [ 34.630258] Code: Bad RIP value. [ 34.633616] RSP: 002b:00000000ffc4298c EFLAGS: 00000286 ORIG_RAX: 00000000000000fc [ 34.641327] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000000000 [ 34.648580] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 34.655832] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 34.663091] R10: 0000000000000000 R11: 0000000000000292 R12: 0000000000000000 [ 34.670350] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 34.678294] Dumping ftrace buffer: [ 34.681998] (ftrace buffer empty) [ 34.685699] Kernel Offset: disabled [ 34.689326] Rebooting in 86400 seconds..